Photo Interrupter Circuit Example(Alarm Circuit, Card Key Lighting) @ThomasKim
Photo Interrupter Circuit Example(Alarm Circuit, Card Key Lighting) @ThomasKim
Uploaded February 2016 | Updated September 2026, 55 minutes ago
I got a photo interrupter from old inkjet printer. It may be utilized for various purposes.
This clip introduces several circuits.
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Thomas Kim |

Photo Interrupter Circuit Example(Alarm Circuit, Card Key Lighting)

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